I finally completed Manufactoria.
Manufactoria is an online puzzle game, which is deceptively simple and surprisingly deep. Your task is to build a factory machine from simple components which takes an object, inspects it and moves it around the factory floor accordingly. In later stages, you get to modify the object as well.
At first you think you’re just moving objects around and printing patterns of coloured dots on them, but later, when you’re thinking of blue dots as 1s and red dots as 0s, and the patterns as binary numbers, you realise that the system is Turing complete and the game’s progressively harder puzzles are teaching you how to build a binary adding machine. It’s a beautiful, powerful way to demonstrate the principles behind mechanical/electronic computation.
While some games, like Angry Birds and Candy Crush, are meant to numb your brain with repetitive tasks, the best ones expand your brain with new skills and knowledge: Manufactoria is in the latter class.
Play the game online here: Manufactoria at PleasingFungus Games